Mode 0 Color conversion table (PEN to Screen pixel format)
dc_mode0_ct:: .db 0x00, 0x40, 0x04, 0x44, 0x10, 0x50, 0x14, 0x54, 0x01, 0x41, 0x05, 0x45, 0x11, 0x51, 0x15, 0x55
Mode 1 Color conversion table (PEN to Screen pixel format)
dc_mode1_ct:: .db 0x00, 0x08, 0x80, 0x88